The standard (medium) width for women is B, while the standard width for men is D. Shoe boxes and labels will only identify widths other than standard. Within the shoes, wide and narrow widths are identified on the label, underneath the tongue — ie. T005N(2E).

When is additional width needed?
Visible stretching or bulging on the outsides of forefoot materials is a good indicator that additional width may be needed. These sizes are available in many of our Running and Training shoes. In some cases, men can wear women’s styles to achieve a narrow fit and women can wear men’s to get a wide. If this is needed, please use the references above to determine comparable size lengths. Please note that the differences of width between narrow, standard, wide, and extra wide are usually only a couple millimeters and are proportional to the size of the shoe. Most additional width will be found in the forefoot.

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GEL-Kayano 23 (4E)

Pronation

Pronation is part of the natural movement of the human body and refers to the way your foot rolls inward for impact distribution upon landing. Understanding your pronation type can help you find a comfortable running shoe. ASICS GEL-Kayano 23 (4E) is made for neutral, over.

UNDER

NEUTRAL

OVER

Neutral

How Your Foot Contacts the Ground

The foot lands on outside of the heel, then rolls inward (pronates) to absorb shock and support body weight.

Push Off

There is even distribution from the front of the foot.

Considered Injuries

Less likely due to effective shock absorption, but neutral runners are not immune to injury.

Foot Type

Normal size arches

Overpronation

How Your Foot Contacts the Ground

The foot lands on outside of heel, then rolls inward (pronates) excessively, transferring weight to inner edge instead of ball of the foot.

Product Details

The new GEL-Kayano® 23 shoe features our Dynamic DuoMax® Support System, set at an angle to support and engage the foot only when required. With improved fit, the new shape not only holds your heel better, it holds the entire foot better while providing superior toe spring. Convergence GEL® Technology and FlyteFoam™ Technology make the new lighter-weight, innovation in the GEL-Kayano® family our greatest adaption yet.

Guidance Trusstic System™ Technology

Ortholite® X-40 Sockliner

This premium sockliner features higher rebound properties while providing excellent moisture management and a high-level of breathability (Ortholite is a registered trademark of ATP Manufacturing LLC.)

Ortholite® Lasting

This lasting material features plush underfoot comfort while providing excellent moisture management and a high level of breathability (Ortholite is a registered trademark of ATP Manufacturing LLC.)

The technology in this product

FLYTEFOAM®

FLYTEFOAM® technology provides exceptional bounce back and responsiveness no matter the distance, utilizing organic super fibers to help reduce packing out that traditionally happens with softer, low density foams.

Impact Guidance System (I.G.S.®)

DuraSponge® Outsole

A blown AHAR® rubber compound for enhanced cushioning and durability in the forefoot.

ComforDry™ Sockliner

This premium sockliner features higher rebound properties while providing excellent moisture management and a high-level of breathability.

APMA Seal of Acceptance

Designated shoes have the American Podiatric Medical Association (APMA) Seal of Acceptance.

AHAR®

Acronym for ASICS® High Abrasion Rubber. Placed in critical areas of the outsole for exceptional durability.

DuoMax® Support System

A dual-density midsole system positioned to enhance support and stability, positioned sport-specifically.

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QUESTIONS, PRODUCT

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Rated 4 out of
5 by
asdd from
Rough to break in, but then worked greatI bought these shoes for winter training and alternated between these and the Nike Structure 21s. I have very flat feet and when I started running in these shoes I had really aggressive shin splints, but after I broke the shoes in they were amazing. They kept their support and bounce for a full season of running between 30-40 miles a week, I stopped running in the Nikes completely. A great shoe that is great for training.

Date published: 2018-05-27

Rated 5 out of
5 by
Storm from
Good buyI bought these shoes as a replacement for a pair of Gel Nimbus 13. They seem to be slightly wider than the 13's, but feel great.

Date published: 2018-04-03

Rated 1 out of
5 by
Hurt Toe from
GEL-Kayano 23 (4E) 'Toe Box very "Narrow'I bought these sneakers for their style/look and EXTRA wide aspects. While they're supposed to be extra wide, the toe box actually is NOT since the top of the sneaker pushes down on my big toe. Had to loosen the laces a great deal to relieve the downward pressure and that's worked partially, however it's not ideal considering there should be more space since these are 4E sneakers.

Date published: 2018-03-12

Rated 5 out of
5 by
G Man from
I Love Asics!Asics are my favorite sneaker and I have tried them all. The Gel-Kayano is awesome! I have a Wide foot and this was an available model and I am very glad to have purchased it. There are others I really like but that are not available in wide width so I am limited but am always looking! Thank you and happy working out!

Date published: 2018-02-01

Rated 5 out of
5 by
Coachmac from
Glad you sell shoes that are 4E wide.It's a good shoe. Very comfortable and fits me very well

Date published: 2018-01-21

Rated 3 out of
5 by
Kingfish from
Ugliest shoes everBought only for 4E size. Use only at home on treadmill. Why not make more shoes available with 4E

Date published: 2018-01-15

Rated 3 out of
5 by
BobM from
Gel-Kayano 23 Extra WideI bought these sneakers for their style/look and EXTRA wide aspects. While they're supposed to be extra wide, the toe box actually is NOT since the top of the sneaker pushes down on my big toe. Had to loosen the laces a great deal to relieve the downward pressure and that's worked partially, however it's not ideal considering there should be more space since these are 4E sneakers.

Date published: 2018-01-14

Rated 5 out of
5 by
cactusman from
Very comfortable - everything I wantedVery pleased again by the GEL-Kayano. As usual got a full size larger than my normal shoe. Good for every day wear as well as for exercise.